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42 Cards in this Set
- Front
- Back
adrenergic antagonists/blockers ex?
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*1. benign postatic hyperplasia (BPH)
2. htn 3. shi sweat 4. pheochromocytoma |
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adrenergic antagonists/blockers se?
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ORTHOSTATIC
hypotension N/V nasal congestion & runny nose inhibition of ejaculation |
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bet adrenergic blocking agents (beta blockers) action & ex ?
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1. actions: competitively binds w/postsynaptic adrenergic membrane receptors, preventing normal activation by adrenergic neuortr.
2. common names generally end with -lol: *atenolol, *propranolol 3. rx for: *hypertension & ht disease, migraines, hyperthyroid, angina |
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bet adrenergic blocking agents (beta blockers) se?
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bradycardia, arrthythmias-esp when stopped suddenly, metabolic disturbances-fasting hypoglycemia, - libido, failure to ejaculate, C extremities, fatigue, insomnia, nightmares, depression
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bet adrenergic blocking agents (beta blockers) CI?
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-do not discontinue abruptly
-*causes bronchoconstriction-CI in pt w/asthma or copd -can cause CHF in some cases -can cause hypoglycemia in diabetics -*do not mix w/drugs that reduce av node conduction-bradyarrthythmias |
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bet adrenergic blocking agents (beta blockers) chm CI?
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hei hu jiao (black peppter) + absorb kinetics of propranolol, + available concentration of both
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parasymapathetic receptors?
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-preganglionic & poastganglionic neurons use Ach as their neurotransmitter
-muscrinic receptors ( in this case, same as cholinergic receptors |
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cholinergic agonists?
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1. + postsynaptic stimulation of a cholingergic neurons, just as Ach would
*postganlionic (parasympathetic)-where we see the effects of ANS 2. analogs of Ach w/longer durations of action *acetylcholinesterases-break down Ach -since these agents cannot be broken down by this enzyme they have longer duration effect |
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cholinergic agonists tx?
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*atonic bladder:postpartum or postoperatively
*muscular weakness of myasthenia *stimulates salivation in cases of xerostomia due to radiation |
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cholinergic agonists se?
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general stimulation of cholinergic neurons
-constriction of pupils, diaphoresis, HA, urinary urgency, N, diar, htn, salivation, flushing, abd pain/cramp, ht palps, tremors, bronchospasms |
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cholinergic agonists CI?
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-asthma
-hypotensive effects can cause a cardiac event in a pt w/cardiac insufficiency |
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cholinergic agonists herb-drug interactions?
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gan cao w/pilocarpine
-may tx overdose by + the metabolism of this drug |
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anticholinesterase drugs (reversible)?
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-prevents the breakdown of Ach in the synaptic cleft, prolonging the activation of the postsynaptic membrane
-bind & reversibly inactivate AchE -while reversible can be used therapeutically, irreversible= insecticides & nerve agents used in chemical warefare -classified as WDM |
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anticholinesterase drugs rx for?
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-muscular weakness mysathenis gravis
-cognitive weakness of alzheimers -adhd in kids |
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anticholinesterase drugs se?
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general stimulation of cholinergic neurons
-diaphoresis, ha, hypotension, urinary urgency, salivation, abd pain/cramps, bronchospasms, diarr |
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anticholinesterase drugs interactions/?
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1. SOB-bronchospasm
2. Cholinergic effects can + gi motility - absorption, effect elimination for those requiring exit through the intestines-rather than kds |
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anti-muscarinic agent?
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-found on post synaptic membrane in parasympathetic ns
rx for: *ibs *parkinsons -cough suppression *diagnostic pupil dilation -inhibits salivation & resp tract secretions -N/V |
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anti-muscarinic agent se?
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blurred vision, confusion, drowsiness, constipation, dry mouth, restlessness, HA, tachycardia, urinary retention
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anti-muscarinic agent interactions?
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-tachycardia can progress to suprventricular tachycardia & atrial fibrillation
-scopolomine for motion sickness can interact w/: fu ling, dang gui, ren shen, shi chang pu, yuan zhi |
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CNS?
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-made up of the brain & spinal cord
-cns presynaptic neurons release neurotra into the synaptic cleft, activating the postsynaptic membrane receptor, *causing voltage changes in the postsynaptic neuron |
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cns vs ans?
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-cns uses *more neurotrans than ans
-neurons in cns have more connections with other neurons -neurotra inhibit as well as excite postsynaptic neurons, making action more potentials more/less possible |
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membrane potential & threshold?
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-an example of an interaction in which Ach is the neurotra. Achs role in the cns is very different than in the ans.
-Ach is only 1 of the many neurotra active in cns & that Ach is an excitatory neurotra in this case, making an action potential more likely |
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depolarization?
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1. ion flow through ion channels can cause hyperpolarization or depolarization, depending on which ions flow in or out and how much change in charge occurs
-think of depolarization & hyperpolarizing as directions on a continuum -hyper=inhibitory -depol-excitatory 2. sufficient depolariztion initiates an action potential 3. depolarization is called an excitatory post-synaptic potential-epsp -+ likelihood of a nerve impulse -caused by an influx of Na ions.This makes the - int. of the cell less - (more +) by the addition of + charged ions -nore & epi are common epsp neurotra in cns |
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hyperpolarization?
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1. inhibitory post synpatic potential (ipsp) come from hyperpolarization of the postsynaptic membrane reducing the likelihood of generating an action potential
-caused by an influx of CL ions or outflow of Na ions -makes the int of the cell membrane more - makes it more difficult to depolarize & thus more difficult to cause an action potential -gaba & glycine common ipsp neurotra |
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cns neurons?
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-most recive both epsp & ipsp
*the sum of these determines if an action potential will be initiated |
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drugs of cns?
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-parkinsons
-anxiolytic & hypnotic -cns stimulants -antidepressants -mania -anti psychotics/neuroleptics -opioid analgesics |
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parkinsons etiology?
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1. cells in substantia nigra produce dopamine. *these cells are degenerated
2. the basal nuclei aid in motor movements |
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parkinsons tx?
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1. scalp in tcm
2. wm is to + dopamine *directly supplementing a dopamine precursor (levodopa) *- of peripheral metabolism of levodop (carbidopa) |
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parkinsons drug combinations?
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-*carbidopa allows more absorption of the levodopa (otherwise 1% only 1% would enter the brain)
-amantadine: antiV for influenza -mao inhibitors reduce the breakdown of dopamine -SE: shi stimulation of cns, hallucinations |
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parkinsons interations?
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-vit b6 reduces effectiveness of levadopa by + peripheral metabolism
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anxiolytic & hypnotic (sed) drugs?
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1. anxiety & insomnia
-anxiety fear, apprehension, uneasiness, tension, known or unknown sourse, trembling,sweating, tachycardia -anxiolytics can be sedating. hypnotics are also used to reduce anxiety |
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anxiolytic & hypnotic (sed) drugs types?
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1. barbiturates
2. benzodiazepines-can also be used as muscle relaxants & anti convulsants |
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mech of action benzo?
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-bind to a specific benzo receptor adjacent to the gaba receptor
-this binding enhances gaba binding to its receptors -gaba binding prolongs the length of time that Cl channels are open -Cl influx leads to hyperpolarization |
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anxiolytic & hypnotic (sed) drugs CI?
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-never use w/alcohol or other cns depressants
-used as muscle relaxants, anti anxiety, anticonvulsant/hypnotics |
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anxiolytic & hypnotic (sed) drugs types?
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*diazepam, lorazepam
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anxiolytic & hypnotic (sed) drugs se?
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-dependence, withdrawl, rebound insomnia, drowsiness, confusion, HA, blurred vision, vertigo, N/V, diarreha, pain, incontinence, intellectual impairment
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anxiolytic & hypnotic (sed) drug chm interaction?
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1. + effects
bai jiang cao, bai shao, long dan cao, shen calming herbs, suan zao ren, tian ma, zhi zi 2. other interactions -bai he, + sleeping -chan tui, sedative effect -hu po, sedative effect -gan cao, tx overdoses |
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cns stimulants?
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-addictive
1. psychotomimetic/hallucinogenic drugs 2. psychomotor stimulants |
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psychotomimetic/hallucinogenic drugs?
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1.psychosis mimicking
-lsd: -pcp: -thc: |
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psychomotor stimulatns?
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-amphetamines & methylxanthines
-OTC stimulants & pain relievers -amphetamines & cocaine -nicotine from cigarettes -OTC smoking cessation products |
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psychomotor stimulants: methylxanthisnes?
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1. *theophylline (tea) ,theobromine (cocoa), caffiene (coffee, tea, ect
-+ mental alertness, - fatigue, anxiety/tremors at high levels -+ inotropic, + chronotropic effects on ht -mild diuretic -can stimulate HCI secretion from gastric mucosa -relax smooth mm of bronchioles |
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cns stimulants: chm interactions?
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-chan tui: inhibitory effect on cns
-*gan cao: tx OD by + metabolism of certain drugs (barbs, cocaine, pilocarpine, nicotine, caffeine) -gou teng: reverses caffeins stimulating effects w/o affecting the use of barbs -*ma haung: may + adrenergic stim, themogenesis & weigh loss of theophylline, + se of caffeine -*suan zao ren: sedative & hypnotic effects -niu huang: has mild sed effect |